LMM1E 3P/4P 63-1250A Electronic MCCB Adjustable Circuit Breaker
LMM1E 3P/4P 63-1250A Electronic MCCB Adjustable Circuit Breaker
Standard: IEC60947-2
Model: LMM1E
Poles: 3P,4P
Frame size: 160,250,400,630,800,1250,1600
Rated operational voltage: 400/415/690V
Rated insulation voltage: 1000V
Trip unit type: electronic type
Breaking capacity code: L,M,H
Installation method: Fixed type; plug-in type
Adjustable Tripping Setting: Ir, Isd, Ii, tR, tsd, Ip
Ambient Temperature: -25…+40 ºC
Certificate: CE, CB
Available in black or white covers
Standard: IEC60947-2
Model: LMM1E
Poles: 3P,4P
Frame size: 160,250,400,630,800,1250,1600
Rated operational voltage: 400/415/690V
Rated insulation voltage: 1000V
Trip unit type: electronic type
Breaking capacity code: L,M,H
Installation method: Fixed type; plug-in type
Adjustable Tripping Setting: Ir, Isd, Ii, tR, tsd, Ip
Ambient Temperature: -25…+40 ºC
Certificate: CE, CB
Available in black or white covers
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LVMA 3P Electronic MCCB |
| Poles | 3P / 4P |
| Rated Operational Voltage (Ue) | AC 400V / 50Hz |
| Rated Insulation Voltage (Ui) | AC 690V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Rated Current (In) | 63A-1250A(adjustable via electronic trip) |
| Ultimate Breaking Capacity (Icu) | 50kA / 65kA (at 400V) |
| Service Breaking Capacity (Ics) | 50%~100% of Icu |
| Trip Unit Type | Electronic (adjustable) |
| Protection Functions | Overload (long-time delay), Short-circuit (short-time delay), Instantaneous, Ground fault (optional) |
| Mounting Type | Panel mount |
| Enclosure Rating | IP20 (front face) |
| Compliance Standards | IEC 60947-2, GB/T 14048.2 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥8,000 operations |
| Electrical Life | ≥1,500 operations at rated load |
3. Core Features
✅ Adjustable Electronic Trip Unit: Multiple rotary dials allow precise tuning of long-time (overload), short-time, and instantaneous trip settings for custom protection coordination.
✅ High-Current Capacity: Rated at 630A with high breaking capacity options, suitable for main distribution circuits in large facilities.
✅ Advanced Protection Modes: Supports selective coordination with upstream/downstream devices to prevent unnecessary outages during faults.
✅ Clear Status Indicators: LED indicators show power, trip, and fault status for quick diagnostics and maintenance checks.
✅ Robust Molded Case: Flame-retardant, impact-resistant plastic housing (UL94 V-0) provides excellent durability and electrical insulation in harsh environments.
✅ High Breaking Capacity: With up to 65kA Icu at 400V, it provides reliable protection against severe short-circuit faults.
✅ Large Terminal Connections: Oversized terminals accommodate high-current cables, ensuring secure and low-resistance connections.
✅ Optional Ground Fault Protection: Available with integrated ground fault protection for enhanced safety in sensitive applications.
4. Applications
- Main distribution panels for industrial facilities and commercial buildings
- Generator and backup power system main breakers
- Three-phase motor control centers and heavy machinery
- Mining, manufacturing, and heavy-duty industrial power systems
- Solar and wind power plant AC-side distribution
- Data center and large-scale commercial power distribution
5. Why Choose LVMA Electronic MCCB?
- Precise & Flexible Protection: Electronic trip unit allows custom trip settings, enabling selective coordination and tailored protection for complex systems.
- High-Current Reliability: 63-1250A rating and high breaking capacity make it suitable for the most demanding industrial power distribution applications.
- Advanced Diagnostics: LED status indicators simplify troubleshooting and maintenance, reducing downtime.
- Durable Construction: Flame-retardant housing and high-quality components ensure long-term performance in harsh environments.
- Compliant & Safe: Meets IEC 60947-2 standards, providing peace of mind for safety and regulatory compliance.
- Cost-Effective Long-Term Solution: Adjustable settings eliminate the need for frequent device replacement as system requirements change.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
- Contact our engineering team for custom trip settings, pole configurations, or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LVMA 3P Electronic MCCB |
| Poles | 3P / 4P |
| Rated Operational Voltage (Ue) | AC 400V / 50Hz |
| Rated Insulation Voltage (Ui) | AC 690V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Rated Current (In) | 63A-1250A(adjustable via electronic trip) |
| Ultimate Breaking Capacity (Icu) | 50kA / 65kA (at 400V) |
| Service Breaking Capacity (Ics) | 50%~100% of Icu |
| Trip Unit Type | Electronic (adjustable) |
| Protection Functions | Overload (long-time delay), Short-circuit (short-time delay), Instantaneous, Ground fault (optional) |
| Mounting Type | Panel mount |
| Enclosure Rating | IP20 (front face) |
| Compliance Standards | IEC 60947-2, GB/T 14048.2 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥8,000 operations |
| Electrical Life | ≥1,500 operations at rated load |
3. Core Features
✅ Adjustable Electronic Trip Unit: Multiple rotary dials allow precise tuning of long-time (overload), short-time, and instantaneous trip settings for custom protection coordination.
✅ High-Current Capacity: Rated at 630A with high breaking capacity options, suitable for main distribution circuits in large facilities.
✅ Advanced Protection Modes: Supports selective coordination with upstream/downstream devices to prevent unnecessary outages during faults.
✅ Clear Status Indicators: LED indicators show power, trip, and fault status for quick diagnostics and maintenance checks.
✅ Robust Molded Case: Flame-retardant, impact-resistant plastic housing (UL94 V-0) provides excellent durability and electrical insulation in harsh environments.
✅ High Breaking Capacity: With up to 65kA Icu at 400V, it provides reliable protection against severe short-circuit faults.
✅ Large Terminal Connections: Oversized terminals accommodate high-current cables, ensuring secure and low-resistance connections.
✅ Optional Ground Fault Protection: Available with integrated ground fault protection for enhanced safety in sensitive applications.
4. Applications
- Main distribution panels for industrial facilities and commercial buildings
- Generator and backup power system main breakers
- Three-phase motor control centers and heavy machinery
- Mining, manufacturing, and heavy-duty industrial power systems
- Solar and wind power plant AC-side distribution
- Data center and large-scale commercial power distribution
5. Why Choose LVMA Electronic MCCB?
- Precise & Flexible Protection: Electronic trip unit allows custom trip settings, enabling selective coordination and tailored protection for complex systems.
- High-Current Reliability: 63-1250A rating and high breaking capacity make it suitable for the most demanding industrial power distribution applications.
- Advanced Diagnostics: LED status indicators simplify troubleshooting and maintenance, reducing downtime.
- Durable Construction: Flame-retardant housing and high-quality components ensure long-term performance in harsh environments.
- Compliant & Safe: Meets IEC 60947-2 standards, providing peace of mind for safety and regulatory compliance.
- Cost-Effective Long-Term Solution: Adjustable settings eliminate the need for frequent device replacement as system requirements change.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
- Contact our engineering team for custom trip settings, pole configurations, or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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